e90's are not terribly problematic.
the 335 will have more maintenance since it is a turbo car.
If you like fast cars get the 335. If you like doing 150km/h in snow get the 328xi.
Hot: 2001 Estoril M Roadster
ZCP 19's, ZHP knob, JL 8W3
Cold: 2002 TiAg M3 6mt
ZCP 19's supersports, ZHP knob, UUC short shift GROM, OEM 18's w310's,
http://absolutehid.ca hid kit